mx1.protect.cienum.fr has no NS records.
NS records for this zone are defined at cienum.fr.
NS records for this zone are defined at cienum.fr.
Question and response
Question
dig mx1.protect.cienum.fr. NS
Answer
The response has no answer records.
Authority
cienum.fr. 86400 SOA ns3.rmi.fr. ndd.adista.fr. 2023012502 21600 3600 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0